Proximity to high-traffic roads raises risk of heart-related death

A nine-year study involving more than 450,000 middle-aged and older adults in Canada found that those who live near high-traffic roads were 29% more likely to die from heart disease compared with those who live farther from such roads. The study also found that the risk of death from heart disease increased among residents who moved closer to busy roads during the study period and decreased among those who moved away from congested roads.